What is reynauds phenomenon?

Blood vessel spasm: Raynaud’s is usually casued by exposure to cold temperatures (or emotional stress) that cause blood vessel spasms, usually in smaller blood vessels, such as in the fingers, toes, ears, and nose. These areas will go through color changes first white (no blood flow), then blue (no oxygen) then red (return of flow), usually with pain or burning. Other causes can be some diseases, drugs, smoking.

Color chages: Raynauds is changes in color typically of the hands and feet on eposure to colder temperatures. Stress and smoking can make it worse. The typical colors are 3, blue to white to red.Raynauds can occur in women as an isolated problem or can be associated with other disease particularly the rheumatic diseases and should be evaluated by your primary md or a rheumatologist.